thorax anatomy

Question 1

what is the jugular notch

Answer 1

marks beginning of superior mediastinum
also known as suprasternal notch

Question 2

what are the clavicles

Answer 2

collar bones, connected to scapula and head of humerus via acromion

Question 3

what is the acromion

Answer 3

attaches clavicle to shoulder blade more specifically attaches clavicle to scapula and head of humerus via ac joint

Question 4

what is sternocleidomastoid

Answer 4

accessory muscle in respiration ( during quiet breathing)

Question 5

what is the costal margin

Answer 5

lower edge of the thorax formed by 7th to 10th rib

Question 6

what ribs are the true ribs

Answer 6

1-7

Question 7

what are the false ribs

Answer 7

8-10

Question 8

what are the floating ribs

Answer 8

11-12

Question 9

what is the significance of the manubrio sternal joint

Answer 9

the point where the manubrium meets the sternum body- same point as sternal angle (angle of louis)
RATPLANT

Question 10

what does RATPLANT stand for

Answer 10

rib 2
aortic arch
T tracheal bifurication
Pulmonary trunk
Ligmentum arteriosum
A- azygous veins
N- nerves
T- right to left movement of thoracic cavity

Question 11

what do azygous veins do

Answer 11

deliver deoxygenated blood from posterior walls of thorax and abdomen into superior vena cava

Question 12

what does cardiopulmonary plexus innervate

Answer 12

thoracic cavity

Question 13

what is the transverse thoracic plane

Answer 13

separates superior mediastinum from inferior mediastinum
passes through intercalated disc t4-t5

Question 14

what does RATPLANT acronym stand for

Answer 14

r- rib 2
A aortic arch
T tracheal bifurication
P pulmonary trunk
L ligmentum arteriosum
N nerves
T- right to left movement of thoracic duct- lymphatic drains at junction between left subclavian vein and left internal jugular vein

Question 15

what three parts is the mediastinum split into

Answer 15

anterior mediastinum
middle mediastinum
posterior mediastinum

Question 16

what are ribs 1-7 called and where do they attach

Answer 16

true ribs attach to sternum or manubrium

Question 17

what are lower ribs called

Answer 17

false ribs join directly with the sternum but by the costal margin

Question 18

what ribs are floating

Answer 18

ribs 11-12

Question 19

what is the cervical rib

Answer 19

can arise from c7 compresses the subclavian artery or the inferior trunk of the brachial plexus c8-t1

Question 20

how do the ribs run

Answer 20

anterioinferiorly

Question 21

what joints connect first rib to manubrium

Answer 21

primary cartilagenous joints

Question 22

what joints are between the true ribs apart from the 1st rib

Answer 22

synovial jonts

Question 23

what are secondary cartilagenus joints

Answer 23

midline joints with exceptions

Question 24

what form the infrasternal angle

Answer 24

the 2 costal margins

Question 25

what is the costovertebral

Answer 25

head of the rib and the two vertebrae inferior demifacet of t1 rib and superior demifacet of t2 rib

Question 26

what is the costotransverse

Answer 26

tubercle of the rib and the transverse process of t2

Question 27

what is the xiphisternal joint

Answer 27

joint between xiphoid process and the end of the body of the sternum